The http://en.wikipedia.org/wiki/kurtosiskurtosis is a measure of the nature of the peaks in
the distribution of the data. A larger value for the kurtosis will
indicate that the distribution has a sharper peak, as we can see in
comparing the distributions of Income and Adjustment. A lower kurtosis
indicates a smoother peak.
[width=, trim=0 100 0 0, clip=true]rattle-audit-explore-kurtosis
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